QLS 2000/3000 Series Digital Color Printers
Printer Maintenance
33
Replacing Parts
Printheads
TO REMOVE AND REPLACE PRINTHEADS:
1. Turn the printer off and unplug it.
2. For standard printheads, flip the printhead cam lever counterclockwise to
relieve pressure on and open the printhead. For inverted printheads, flip the
cam lever clockwise to open the printhead. Do not lock printheads into the
up position.
3. Press down the silver clip holding the printhead cam and pull the cam
completely out. To provide more maneuverability, the printhead cam on the
print station to the right of the printhead you are replacing can also be
removed.
4. Remove thermal transfer ribbon currently loaded on the print station.
5. Loosen the center captive retaining screw on the printhead by turning it
counterclockwise. Detach the printhead.
6. Be careful not to damage the cable harness that attaches to the printhead.
Unplug the printhead cable harness from the printhead. Set the detached
printhead aside.
7. Plug the printhead cable harness into the replacement printhead.
8. Position the replacement printhead against the printhead retaining plate for
attachment. Be sure that the two side screws are fitted through the
corresponding holes in the new printhead.
